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fzus63 kmqt 280756
glfls 
283 

open lake forecast for lake superior
national weather service marquette mi
356 am edt fri apr 28 2017

for waters beyond five nautical miles of shore on lake superior

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...a low pressure system of 29.3 inches will continue to 
lift north towards the hudson bay today. a ridge builds from 30.0 
inches to 30.4 inches over the upper great lakes tonight into 
saturday. this ridge will move over eastern ontario and 
western quebec by sunday and weaken to 30.3 inches...while a 29.6 
inch low over missouri deepens to 29.2 inches...and lifts over iowa 
by monday morning. this area of low pressure will continue to lift 
northeast across wisconsin and up into eastern portions of upper 
michigan by tuesday morning as a 29.2 inch low. the low will 
weaken to around 29.4 inches as it lifts northeast into quebec by 
wednesday morning...leaving a trough of 29.9 inches draped across 
the upper great lakes.

lsz162-281600-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
356 am edt fri apr 28 2017 /256 am cdt fri apr 28 2017/

.early this morning...west winds 15 to 25 knots. waves 2 to
4 feet. 
.today...west winds 15 to 25 knots. waves subsiding to calm to
2 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 5 to
15 knots after midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...northeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...northeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. a chance of rain and snow. 
waves building to 5 to 8 feet occasionally to 10 feet. 
.monday...northeast gales to 40 knots becoming north 20 to
30 knots. rain...possibly mixed with snow. waves building to 7 to
10 feet occasionally to 13 feet...then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of rain showers...possibly mixed with snow.
waves subsiding to calm to 2 feet. 

$$
fzus63 kmqt 280756
glfls 

lsz263-281600-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
356 am edt fri apr 28 2017

.early this morning...west winds 15 to 25 knots. isolated snow
showers. waves 3 to 6 feet occasionally to 8 feet. 
.today...west winds 20 to 30 knots. a slight chance of rain and
snow showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 5 to
15 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.saturday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...northeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of rain...possibly
mixed with snow. waves building to 5 to 8 feet occasionally to
10 feet. 
.monday...northeast gales to 40 knots diminishing to 20 to
30 knots. rain likely...possibly mixed with snow early. waves 
building to 7 to 10 feet occasionally to 13 feet...then subsiding 
to 3 to 6 feet occasionally to 8 feet.
.tuesday...north winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of rain and snow showers. waves subsiding to
calm to 2 feet. 

$$

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